baber/WOPTO huggingface dataset:
Patent GB-1029048-A (GB)
Title: Process for the preparation of aromatic carboxylic acids
IPC: C07C63/00
Filed: 1964-12-01
Abstract: Aromatic carboxylic acids are prepared by alkaline hydrolysis of the corresponding aromatic compound having one or two nuclear substituent groups of formula -C(CXF2)2OH, in which X is Cl or F and optionally other substituents, namely, alkyl, alkoxy, hydroxy, amino, dialkylamino or halogen, the reaction being effected at from 100 DEG C. to the boilingpoint of the mixture.  Starting materials, which are regarded as (optionally substituted) (1) hydrocarbons, (2) amines, or (3) phenols, to which the -C(CXF2)2-OH group(s) is (are) attached, are prepared by reacting the compound O = C(CXF2)2 with (1) and AlCl3, (2) and a sulphonic acid or (3) optionally with a sulphonic acid.
Patent GB-1153819-A (GB)
Title: Vented Mechanical Device
IPC: F16D41/00
Filed: 1967-10-30
Abstract: 1,153,819. Lubricating clutches. BORGWARNER CORP. 30 Oct., 1967 [3 March, 19671. No. 49137/67. Heading F2C. A sprag clutch is provided with a venting structure to vent the lubricant enclosure during overrunning. Seals 15 retain lubricant between an inner clutch part 11 and an outer clutch part 12 which is supported thereon by bearings 14. Part 11 is coupled by a key 20 to a driving shaft 17. The clutch is vented by way of peripheral grooves 36, 35 interconnected by a shallow slot 37 which is circumferentially spaced from a radial passage 34 leading from the groove 35 to the keyway 19 to provide a passage to the exterior for venting air from the lubricant space during overrunning.
Patent GB-1123000-A (GB)
Title: Improvements in or relating to closure members for bottles or like containers
Inventor: DEXTER GUY EDRIC
IPC: B65D47/14
Filed: 1965-11-19
Abstract: 1,123,000. Caps for bottles. METAL BOX CO. Ltd. 11 Aug., 1966 [19 Nov., 1965], No. 49340/65. Heading B8T. A cap 4 moulded integrally.of plastics with an inner closure 1 having a discharge hole 6 in its crown 5, as described in Specification 1,122,999, and having a downwardly-projecting spigot 12 which can be snapped into the hole 6, has a radially-projecting relatively rigid lug 14 at one side with a weakened hinge portion 15 integral with a relatively rigid radiallyprojecting lug 13 on the outer wall 8 of the inner closure. An inner wall 11 forming a de pending skirt integral with the crown of the cap 4 snaps on to the outside of the outer wall 8 of the inner closure. A radially-extending flange 18 at the edge of the cap 4 can be engaged by a finger-nail to open the cap. Axial ribs 19 around the outside of the outer wall 8 of the inner closure member 1 protect the cap 4 from accidental opening.
Patent GB-1025155-A (GB)
Title: 1,8-dihydroxy-anthraquinone-2-phenylthioethers
IPC: C09B1/58
Filed: 1963-12-17
Abstract: The invention comprises dyes of the formula <FORM:1025155/C4-C5/1> wherein Ar is substituted or unsubstituted phenyl and X is a nitro or primary amino group. The dyes are made by reacting 1:8-dihydroxy-4:5-dinitroanthraquinone with a phenyl mercaptan in pyridine or a monomethyl pyridine and, when X is to be amino, the nitro groups are reduced.  The phenyl mercaptan may be substituted by chloro, bromo, methyl or tertbutyl and 2-methyl-pyridine is specified as a monomethyl pyridine.  The dyes dye synthetic fibres including cellulose esters in blue shades.
Patent GB-1537110-A (GB)
Title: Apparatus and method for buffering submerged conduits
IPC: F16L1/26
Filed: 1976-11-30
Abstract: 1537110 Pipe joints BROWN & ROOT Inc 30 Nov 1976 [24 Dec 1975] 49828/76 Heading F2G A buffer unit for interconnecting subsea terminal pipeline end portions 10a, 10b with riser pipeline end portions 20a, 20b, projecting from a platform base 22 comprises a framework 32 of steel frame members 34 clad with sheets 36 of ribbed steel to provide an enclosure, conduit segments 38a, 38b, and 40a, 40b, projecting from the enclosure for connection to the pipeline and riser end portions, the conduit segments being interconnected within the enclosure by bends 44a, 44b and 46a, 46b, and straight sections 48a, 48b, to provide expansion mechanisms 42a, 42b, the straight sections resting on adjustable ramps 50, 52 coated with polytetrafluoroethylene to reduce friction. Positioning mechanisms 64 may be provided to adjust the positions and/or attitudes of the conduit sections within the enclosure to facilitate connection of the buffer unit to the pipeline and riser end portions, and the unit may be anchored by ballasting with rip-rap or by cables 56 secured to the base 22. In an alternative embodiment, Fig. 7, a housing 68 embedded in ballast encloses a dog-leg expansion mechanism 70 interconnecting a pipeline 72 with a conduit 74.
Patent GB-1096249-A (GB)
Title: Spontaneously crimping composite filaments and yarns
IPC: D01F6/60
Filed: 1965-11-24
Abstract: 1,096,249. Composite crimpable polyamide filaments. SOCIETE DE LA VISCOSE SUISSE. Nov. 24, 1965 [Nov. 24, 1964], No. 49930/65. Addition to 969,110. Heading B5B. The process of Specification 969,110 for the manufacture of crimped or voluminous yarns containing composite filament (wherein yarns containing composite filaments of polyamides of uniform composition are produced by melt spinning, the double refractions of the filament components in the unstretched state differing by at least 0À002, the yarns are stretched at at least 60‹ C. and the tension on the yarns subsequently relaxed to allow the spontaneous crimp of the composite filaments to develop) is modified in that the filaments are bi-component filaments and the two components thereof are melt-spun through three-armed spinneret orifices to provide trilobal filaments in the yarn. The centres of the orifices may be vertically below the straight edge along which the two components unite, the slots of the orifices and the angles included therebetween being arranged symmetrically about said edge as a line of symmetry. One of the components may have a lower reduced viscosity than the other and cooling air may be blown on to the composite filament from a direction faced by one of the slots of each orifice, the component of lower reduced viscosity flowing through the slot that faces the stream of cooling air. The component of lower viscosity may flow through a slot of each orifice which is of different length of the other two slots, said other two slots being of equal lengths. The crimped filaments may be heat-set in the slack state.
Patent GB-1300820-A (GB)
Title: Regenerated cellulose fibrous product and process for producing the same
IPC: D04H1/28
Filed: 1970-10-21
Abstract: 1300820 Regenerated cellulose microfibres MITSUBISHI RAYON CO Ltd 21 Oct 1970 [24 Oct 1969] 49965/70 Heading B5B [Also in Divisions D1 and D2] A fibrous product comprising a large number of regenerated cellulose fibril-like microfibres having a diameter of 0À1 to 5 microns, at least a portion of said fibril-like microfibres being mutually entangled may be prepared by a process in which a coagulation liquid is ejected at a high flow rate through inner tube 1 of an aspirator-type spinning apparatus (Fig. 3) and a viscose spinning solution is introduced (by a Venturi effect or under pressure) through pipe 2 and is coagulated under conditions of high stress in the narrow portion of the apparatus c, the resultant mixture of coagulation liquid and microfibrous product being discharged through discharge pipe 3. Preferably the coagulation liquid is an aqueous solution containing an acid (e.g. H 2 SO 4 ) with or without formaldehyde and/or a hydrophilic solvent, suitably acetone, ethyl, methyl or propyl alcohol, THF or dioxane. The viscose spinning solution or the coagulation liquid may additionally contain other organic materials, preferably of synthetic polymers in the form of cut fibres, granules or flakes, or inorganic materials, when the fibrous product of the invention also contains these added materials. Examples relate to the production of fibrous products consisting of regenerated cellulose microfibres alone or from viscose spinning solutions containing a granulated ethylene-vinyl acetate copolymer, aqueous emulsions of vinyl acetate/ ethylene copolymers, hydrophilic solvent solutions of polyvinylchloride or polyethylene, or aqueous dispersions of powdered polytetrafluoroethylene, bleached tree pulp or glass fibre strands or from viscose spinning solutions coagulated with an acidic coagulation liquid containing granulated kaolin, dried flakes of cellulose diacetate or cut acrylic fibres. The fibrous products were subjected to conventional regeneration, scouring and drying treatments, and made into non-woven fabrics by defibrating and paper-making operations (Details D1-D2 Abridgment].
Patent GB-1519148-A (GB)
Title: Compositions of matter
IPC: C12N9/54
Filed: 1974-11-19
Abstract: 1519148 Enzyme-containing detergent compositions GIST-BROCADES NV 18 Nov 1975 [19 Nov 1974] 50044/74 Heading C5D [Also in Division C3]  A proteolytic enzyme prepared by cultivating Bacillus nov. spec. PB92 under aerobic conditions is included in a washing composition which additionally contains a detergent, a water softener, an alkali metal silicate, a weakly alkaline bicarbonate and an alkali metal perborate.
Patent GB-1278871-A (GB)
Title: Improvements relating to electric switch assemblies
IPC: H01H35/34
Filed: 1970-10-22
Abstract: 1278871 Interlocking of switches VYZKUMNY USTAV ZDRAVOTNICKE TECHNIKY 22 Oct 1970 [11 Nov 1969] 50231/70 Heading H1N Operation of a manual switch 1 is prevented by a mechanical interlock while a fluid pressure actuated switch 4 is in its "on" position. For use in controlling a dental drill the switch 1 is connected to reverse the polarity of current supplied to a drive motor. The switch 4 controls energization of the motor dependent on the supply of compressed gas to space 6 below a diaphragm 7. The compressed gas is used to cool the motor so switch 4 prevents the motor being started unless cooling is adequate. The - motor is started and stopped by controlling the supply of compressed gas. When the gas is supplied diaphragm 7 pushes a pin 8 upwards acting on a spring blade 12 to close the microswitch 4. The pin 8 passes through one of two holes in a sheet metal arm 11 thereby preventing further movement of the rocker 14 of switch 1.
Patent GB-1199615-A (GB)
Title: Breech Lock for Machine-gun Breech Mechanisms
IPC: F41A3/46
Filed: 1967-11-06
Abstract: 1,199,615. Breech lock for machine gun breech mechanisms. RHEINMETALL G.m.b.H 6 Nov., 1967 [14 Dec., 1966], No. 50342/67. Heading F3C. A breech lock for a machine gun breech mechanism includes a rebound bolt 7 which in use co-operates with a control member 4 to act upon associated locking rollers 3 in a reciprocating breech member. The rebound bolt 7 is provided at each end with a head bush 9, 9a slidably mounted thereon and urged away from each other, against motion limiting stops (Fig. 2, not shown) which are mirror images of each other, by means of a spring 10 surrounding the bolt 7. In the construction shown the bolt is thickened at its middle portion to increase its mass. The control member 4 houses the firing pin 5.
Patent GB-1555925-A (GB)
Title: Process for the preparation of alkyl aryl ethers
IPC: C07C67/00
Filed: 1977-12-05
Abstract: Process for the preparation of alkyl aryl ethers by reacting aromatic hydroxy compounds with aliphatic alcohols in the presence of strongly acidic cation exchangers based on synthetic resins using the aromatic hydroxy compound in excess of the aliphatic alcohol.
Patent GB-1143469-A (GB)
Title: Combined gas turbine and steam turbine power plant installation
Inventor: WOOLLEY ERIC MAURICE
IPC: F01K23/10
Filed: 1966-11-11
Abstract: 1,143,469. Combined gas turbine and steam turbine power plant. HEAD WRIGHTSON & CO. Ltd. Feb.7, 1968 [Nov.11, 1966], No.50577/66. Headings F1G and F1Q. In an operating cycle as claimed in Specification 932,718 further low-pressure steam from a source 18 independent of that of the steam turbine 11 is injected into the cycle to improve the output of the compressor driving turbine 1 and/or the load turbine 5. The further low-pressure steam may be injected into the cycle at a position where it is passed through the compressor driving turbine 1 or at a position where it by-passes the compressor driving turbine. A proportion'of the further low-pressure steam supply may be also passed to a de-aerator 15.
Patent GB-1006383-A (GB)
Title: Improvements in or relating to sulphonyl hydrazones and the manufacture thereof
IPC: A61K31/15
Filed: 1963-12-23
Abstract: The invention comprises compounds of the mula <FORM:1006383/C2/1> <FORM:1006383/C2/2> where X represents a chlorine or bromine atom, R represents an alkylsulphonyl, having 1-8 carbon atoms, a benzenesulphonyl or alkylbenzenesulphonyl, having 1-10 carbon atoms, group and n is 1 or 2, and the alkali metal and alkali earth metal salts thereof. The compounds are prepared by the reaction of an aldehyde of the formula <FORM:1006383/C2/3> <FORM:1006383/C2/4> with a hydrazide H2N-NH-R, preferably in the presence of inert solvent. The salts of the compound can be made by neutralizing the free acid with the appropriate base or metathesis. Examples (1), (2) and (4) describe the preparation of 1-chloro-3,4-dihydro-2-naphthaldehyde - p - tolysulphonyl - hydrazone, 9 - chloro - 6,7 - dihydro - 5H - benzocycloheptane - 8 - carboxaldehyde - p - tolylsulphonyl - hydrazone and 2 - chloro - 3,4-dihydro - 1 - naphthaldehyde - p - tolylsul-phonyl-hydrazone. A number of other compounds are specified. The aldehydes of formula II and IIA can be made by treating a -tetralone and benzuberone with dimethylformamide and a phosphorus halide or a phosphorus oxyhalide.
Patent GB-1249464-A (GB)
Title: Improvements in or relating to piezo-electric transducers
Inventor: CRASTER WILLIAM
IPC: B06B1/06
Filed: 1967-11-08
Abstract: 1,249,464. Piezo-electric transducers. PLESSEY CO. Ltd. 4 Nov., 1968 [8 Nov., 1967], No. 50825/67. Heading H4J. [Also in Division H2] A piezo-electric transucer for subaqueous signalling comprises a metal plate diaphragm 7 with a ceramic piezo-electric wafer 5 bonded to it to form one electrode and a metal coating 6 forming the other electrode of the transducer. The diaphragm forms the base of a cylindrical cup-shaped structure having a side wall 8 with an annular groove 9. Longitudinal slits 10 are provided in the side wall to impart resilience to the diaphragm and the assembly fits into shell members 11, 12 and is secured by screws. A sealing gasket may be provided in groove 9 and a similar assembly provided at the other end of the shell members. For deep water applications, the ceramic disc may be bonded to the outer surface of the diaphragm so that it is in compression. - In a modification, the casing vibration is reduced by making the mass of the support structure large in comparison to that of the diaphragm by providing a solid centre portion to which collars are attached for fixing the diaphragm assembly.
Patent GB-1367657-A (GB)
Title: Load-carrying vehicles
IPC: B60P1/64
Filed: 1972-11-03
Abstract: 1367657 Removable bodies; vehicle suspensions REYNOLDS BOUGHTON Ltd 3 Nov 1972 [4 Nov 1971] 51238/71 Headings B7B and B7D [Also in Division B8]  A lifting mechanism for a vehicle demountable body comprises a frame A having a cross member A1 mounted between longitudinal chassis tracks and pivotable about an axis A4 by a ram B. As the ram is extended from its Fig. 1 position the frame moves over a path A5 to lift the body allowing its legs to be lowered to then deposit it thereon as the member A passes to the other side of the axis A4 while a tapered projection C engages guides on the bottom of the body to control and centre it. The body has wheels on its forward corners which engage and run on the chassis tracks and once it is supported on its legs the vehicle can be driven from under the body. A reverse procedure applies to loading the body on to the chassis. Final retraction of the ram B may engage hooks H, Fig. 3, over lugs J on the body subframe to lock it on the chassis. Anti deflection arms D Figs. 1, 2 are normally held retracted by springs G but as the ram B reaches its extended position the spring loading of links F overcomes the springs G to. position the arms D over the centre of the suspension springs to prevent their deflection as the body weight is taken by its legs. The rear of the chassis M, Fig. 4, is prevented from downward tipping by an arm K1 which by its connection K3 to the frame member A6 is pivoted into a vertical supporting position K22 as the body becomes fully lifted to allow extension of its legs L. To lift or lower the body from or to the ground a boom N, Fig. 5, may be connected by a link N2 to the chassis at N3 and a wire rope N5 attached to the frame cross member A1 may be connected by a hook N6 to a lug on the end of the body so that the ram B may be used to lift or lower it.
Patent GB-1095736-A (GB)
Title: Improvements in or relating to control systems for hydraulic power units
IPC: F15B13/04
Filed: 1964-12-17
Abstract: 1,095,736. Hydraulic apparatus. I. SOYLAND and K. SOYLAND. Dec. 17, 1964 [Dec. 18, 1963], No.51408/64. Heading F1P. A control system for a hydraulic cylinder A having a ram B comprises an assembly of valves Va. . . Ve each having a piston member 1 controlling the flow from an inlet 4 to an outlet 5 and each being loaded by a spring 8 and by the pressure of fluid which passes through a restricted by-pass passage 6 in each valve to pilot lines 31, 32 or 43', the pressure in which is controlled by a spool valve 14 and by an adjustably loaded pilot valve 44 to thus control the operation of the valves Va... Ve. In the position of the control system shown, the spool valve 14 is in a position in which a control pressure line 25 connected to the valve Va communicates via an annular passage 21 and a conduit 23 with the tank 11. The piston member 1 of the valve Va is therefore only loaded by its spring 8 and hence opens to by-pass the output from the pump 12 back to the tank 11 through conduits 26', 27. In the position shown hydraulic fluid is trapped in both sides of the cylinder A by valves Vc, Ve which cannot open since fluid is trapped in the pilot lines 31, 32 by the spool valve 14. If however the pressure in the cylinder A reaches an excessive value the pilot valve 44 opens to allow the pressure to be relieved from the cylinder through valve Ve or Vc and a conduit 27. Movement of the spool 16 to the left opens the pilot conduit 32 to tank and closes the control pressure line 25. Closure of the line 25 causes pressure to build up therein to close the valve Va whereby the pump 12 supplies fluid to the right hand end of the cylinder A through a check valve 30, a main 26, the valve Vb which can open since the pilot conduit 32 is depressurized, and a main 28. The ram B therefore moves to the left and fluid is discharged from the left hand end of the cylinder A through a main 29, the valve Vc and the conduit 27 to the tank 11. In order to prevent fluid passing through the by-pass passage 6 of the valve Vb to the tank via pilot conduit 32 and spool valve 14, a ball 41 engages the rear end of the piston 1 when the valve Vb is open and hence closes the by-pass passage. The spool valve 14 is displaced to the right for operation of the ram in the opposite direction and in a similar manner to that described. To cushion the ram B at the ends of each stroke, normally open valves (not shown) are disposed in the pilot lines 31, 32, the valves being arranged to be closed by the movement of the ram 3, either through a direct mechanical link or via an electric circuit. The closing of these valves causes controlled closure of the associated valve Vc or Ve through which fluid is returning to the tank 11 and thus decelerates the ram 3.
Patent GB-1278717-A (GB)
Title: New dialkali metal salts of orthosilicic acid
Inventor: TERMIN ERICH
IPC: C07F7/04
Filed: 1970-10-30
Abstract: 1278717 Dialkali metal dialkyl orthosibicates DYNAMIT NOBEL A G 30 Oct 1970 [31 Oct 1969 and 30 Sept 1970] 51848/70 Heading C35] Novel dialkali metal salts of orthosibicic acid dialkylesters having the formula wherein M represents an alkali metal (e.g. Li, Na or K) and or represents an alkoxide group, are prepared by reacting an orthosibicic acid tetralkyl ester of the formula Si(OR) 4  with an alkali metal hydroxide under substantially anhydrous conditions. The reaction may be conducted in an alcohol solvent and may proceed directly to the dialkali metal salt or via the intermediate monoalkali metal trialkyl ester salt, which is converted to the required dialkali metal salt by heating or by extraction with solvents. Uses: surface etching of glass, particularly in the form of glass fibres.
Patent GB-1334555-A (GB)
Title: Filter for use in the filtration of blood
IPC: B01D36/00
Filed: 1971-11-09
Abstract: 1334555 Filters for human blood PALL CORP 9 Nov 1971 [10 Nov 1970] 51898/71 Heading B1D A filter sheet, suitable for use in the removal of microemboli from human blood, is woven in square weave from polyester monofilaments so that the pore size is in the range 25-50 microns and the open area is in the range 25-40%, the filaments being attached together, e.g. by sinter-bonding, at their crossing- points. The monofilaments may be made from polymers of ethylene glycol and terephthalic acid, or of other glycols and dicarboxylic acids. The filaments have a diameter in the range 25-50 microns. In the filter unit shown, the filter sheet 6 has been sandwiched between two sheets 11, 12 of polypropylene netting, and the composite has been corrugated and formed into a cylinder around a rigid perforated polypropylene core 14, the ends of the cylinder being fused to polypropylene caps 7, 8. The polypropylene housing comprises two portions 16, 17 bonded together, each having a connection 20, 21 to a blood circulation system. When the unit is first put onstream, air is expelled from the interior through vent 30. The flow of blood can be in either direction through the unit. Other plastics material may be used instead of polypropylene, e.g. polyamides, polyvinylidene chloride, polycarbonates, polytetrafluoroethylene and polytrifluorochloroethylene. A filter unit is described which has a housing in the form of a flat pouch, the rigid core being dispensed with (Figs. 5 to 7, not shown).
Patent GB-1583390-A (GB)
Title: Sutures coated with an absorbable coating composition and method for the tie-down characteristics of sutures
IPC: D06M101/16
Filed: 1977-12-14
Abstract: The absorbable suturing material is already coated or becomes coated with 2 to 15 per cent by weight, based on the pure suturing material, of a composition comprising a mixture of at least one water-insoluble, absorbable fatty acid salt and at least one absorbable polymer in a specific weight ratio. A suturing material coated in this way is readily absorbable, on the one hand, and has excellent crosslinking properties, on the other hand.
Patent GB-1249484-A (GB)
Title: A valve arrangement comprising a valve body and a throttle member
Inventor: ANDERSSON PER OTTO
IPC: F16K5/04
Filed: 1968-11-07
Abstract: 1,249,484. Valves. P. O. ANDERSSON. 7 Nov., 1968 [7 Nov., 1967], No. 52778/68. Heading F2V. In a throttling valve, flow between the valve housing ports 20 and 20<SP>1</SP>, is controlled by a valve member 13 which has formed therein two diametrically opposite ports 18 and 18<SP>1</SP> and which has inserted into a bore 24 thereof a throttle 14 formed with a diametrically extending passage 16, the arrangement being such that flow through the throttle passage 16 takes place only when the valve and valve member ports are in registry with one another. In a modification (Figs. 3 and 4, not shown), the arcuate extent of one of the valve member ports (18<SP>11</SP>), as measured on the periphery of the valve member, is made greater than that of the other port (18<SP>1</SP>) such that in the closed state of the valve, and subsequent to the withdrawal of throttle 14, flow may take place from port 20 and into the bore 24 with port 20<SP>1</SP> being closed.